Description
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BrandHirschmann
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ModelMM20-Z6Z6Z6Z6SAHH
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Product NameMM20 Fast-Ethernet Media Module with Four SFP Slots
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Dimensions38 mm width × 134 mm height × 118 mm depth
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Weight0.28 kg
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Place of OriginGermany
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HS Code85176200
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Operating Temperature0 °C to +60 °C
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Storage Temperature-40 °C to +85 °C
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Power Supply5-7 W
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Warranty12 month
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Statusnew brand
Hirschmann MM20-Z6Z6Z6Z6SAHH Input & Output
Power Input
Power is delivered through the backplane of MS20/MS30 host switch. This media module requires no standalone external power supply.
Network Input / Output
4-port Fast-Ethernet SFP slots at 100 Mbps. Compatible with Hirschmann M-FAST-SFP transceivers for multi-mode and single-mode fiber links. These ports handle both receiving and transmitting data for industrial fiber-Ethernet communication.
Backplane Interface
High-speed internal backplane I/O interface, responsible for high-throughput data interaction with MS20 / MS30 main switch chassis.
Relay Output
This media module does not feature dedicated relay output. Fault relay functions are implemented by the parent MS20/MS30 host switch.

Hirschmann MM20-Z6Z6Z6Z6SAHH Application Cases
This hot-swappable 4-port Fast-Ethernet SFP media module is engineered for Hirschmann MS20 / MS30 MICE-series modular switches. It provides high-density fiber-optic connectivity to build redundant industrial Ethernet rings as well as long-distance point-to-point communication links under demanding industrial operating conditions.
Power Substation & Grid Automation
Installed within substation control cabinets to establish communication links among remote IED devices, protective relays and field-mounted RTUs. Fiber-optic connections mitigate intense electromagnetic interference originating from high-voltage switchgears and transformers, guaranteeing steady SCADA and automation data transmission for power monitoring infrastructure.
Oil, Gas and Petrochemical Facilities
Well-suited for control-room enclosures and field cabinets deployed in hazardous areas compliant with Class 1 Div 2 and ATEX Zone 2 standards. Featuring four configurable SFP slots, the module builds redundant fiber backbone networks for refineries and remote pipeline monitoring sites, enabling robust data exchange between geographically scattered field nodes and central control systems.
Railway & Intelligent Transportation Systems (ITS)
Implemented in track-side cabinets, highway monitoring stations and tunnel automation infrastructure. When fitted with single-mode SFP transceivers, it supports multi-kilometer fiber communication distances. Compatibility with HIPER-Ring and MRP redundancy topologies delivers rapid fault recovery for traffic signal controllers, roadside monitoring hardware and tunnel control assemblies.
Water & Wastewater Treatment Plants
Facilitates interconnection of dispersed PLC racks, remote sensor nodes and SCADA workstations across extensive water treatment premises. Fiber optics eliminate ground-loop interference triggered by long-run copper cabling, supporting consistent real-time data acquisition and closed-loop process control for water treatment workflows.
Heavy-Duty Factory & Process Automation
Housed in modular industrial control cabinets as a fiber expansion accessory for MS20/MS30 main switches. It consolidates multiple field fiber links, constructs highly reliable optical ring networks for manufacturing workshops, and connects distributed local control sub-racks to central control rooms without requiring additional external media converters.
Renewable Energy Power Plants
Deployed in wind farms and solar power plants to handle network interconnections between turbines and field-level stations. Its hot-swap function permits module replacement without system-wide power interruption, sustaining uninterrupted remote monitoring and data acquisition for renewable generation assets.
